This site offers descriptions and hints on troubleshooting STOP error messages in Windows:
http://aumha.org/a/stop.htm
0xc0000135 - missing DLL - http://cork2toronto.blogspot.ca/2013/06/stop-c000021a-fatal-system-error-status.html
Nirsoft has this great tool: http://www.nirsoft.net/utils/blue_screen_view.html - reads the minidump files to get back the details of all the BSODs and which file tripped it.
tags: bsod, stop, windows, winxp